Tool-assisted movies

There have been many attemps to TAS this game, but this is the first one to be published. We recommend reading the author's comments for this video.

There is more than just an appearance change to this game. Knuckles' abilities remain intact. If you haven't seen Sonic the Hedgehog completed before, you may wish to do so before seeing what a character with a spindash and gliding can accomplish.

This is a 7 minute 38 second improvement over the previous movie. Much of this improvement is simply due to defeating bosses more quickly. The author has left detailed comments about these improvements.

This run takes everything you know about Sonic and Knuckles and turns it upside-down. It extensively uses the "scroll objects offscreen to pass through them" trick to zip and warp to places that shouldn't be reached, break bosses, and effectively skip entire stages.

It is worth noting that nitsuja did not directly participate in the creation of this movie; instead, Upthorn incorporated newly discovered tricks in several stages and spliced them in for a total improvement of 49 seconds.

This is the fourth run of this game, improving on the previous effort by almost two minutes.

The game is markedly different than other Sonic games; aside from "improved" graphics and sounds, each level has 2 to 4 alternate versions that correspond to different time periods. Sonic can move between them to affect the gameplay and ending.

This run is approximately 37 seconds faster than upthorn and nitsuja's previous run thanks to various optimization and minor route changes. For more information on the improvements, the BIOS files used and a run for the Japanese version of the game, please read the author's submission notes.

There are two AVIs, the first recorded with the US music and the second with the Japanese music.

Trivia: this game slightly predates the MegaDrive/Genesis version, so features the official first appearance of Sonic's flying mutant fox friend, Tails.

In this movie, Spinal takes down his enemies by slicing them up, hitting them with their own abilities, and (gasp!) making them dance to music!

The damage for every move was mapped out carefully by monitoring the internal values of the RAM, to be able to choose the best attack for every situation. Luck was manipulated to make some enemies appear in more convenient positions.